Fluorescence Studies of Selected 2-Alkylaminopyrimidines

Molecules

Z. Abdullah²  N. Mohd Tahir¹  M. R Abas²  Z. Aiyub² 

[1] Department of Chemical Sciences, Kolej Universiti Sains dan Teknologi, Mengabang Telipot, 21030 Kuala Terengganu, Terengganu, Malaysia.;Department of Chemistry, Faculty of Science, Univ. of Malaya, 50603, Kuala Lumpur, Malaysia.

关键词: Fluorescence spectroscopy;    alkylaminopyrimidines;    fluorometry;    fluorogenic reagents;   

DOI  :  10.3390/90700520

来源: mdpi

【 摘 要 】

The reactions of 2-chloropyrimidine with methylamine, ethylamine and piperidine gave the corresponding 2-N-methylamino-, 2-N-ethylamino- and 2N-piperidinopyrimidines, respectively. The  fluorescence properties of  these alkylamino derivatives in chloroform, ethyl acetate, carbon tetrachloride, acetone, ether, ethanol and methanol were studied. All the alkylamino derivatives showed the highest fluorescence intensity in polar protic solvents; thus 2-N-methylaminopyrimidine (highest fluorescence intensity at 377 nm when excited at 282 nm) and 2-N-ethylaminopyrimidine (highest fluorescence intensity at 375 nm, when excited at 286 nm) showed the highest fluorescence in methanol. In ethanol, 2-N-piperidinopyrimidine showed a fluorescence peak at 403 nm when excited at 360 nm and in chloroform it fluoresced at 392 nm when excited at 356 nm.

【 授权许可】

Unknown   
© 2004 by MDPI (http:www.mdpi.org).